From Wiktionary, the free dictionary
Attested as De Gront van Group in 1639. Likely derived from Middle Dutch groepe (“ditch, gutter”).
Greup n
- A hamlet in Hoeksche Waard, South Holland, Netherlands
- van Berkel, Gerard, Samplonius, Kees (2018) “greup”, in Nederlandse plaatsnamen verklaard[1] (in Dutch), Mijnbestseller.nl, →ISBN